Cash
Main currency from car sales, driving, the Carl's Jr. job, speed traps and codes.
Every Junk Mechanics location, game system, and reference page in one place. For the game overview, start at the Junk Mechanics Wiki home page.
Start at the Junk Mechanics Wiki home for the game identity and core loop. Stay here to look up a place, system, car or term, and open the guides when you want step-by-step help.
Pick the page that matches what you want to look up.
Reported models, the tier system, limited and auction-only cars
Open reference →BIDS! and the latest code status, mixed reports, and the expired list
Open reference →Week-by-week update log from August to the October 10 Halloween event
Open reference →Roblox, creator community, Discord, Trello, and wiki status
Open reference →Use the mini map navigation markers to route to each place.
| Location | What it is for |
|---|---|
| Junkyard | Buy rusty cars; spawns refresh over time or with rerolls. |
| Nando's mechanic shop | Repair engine, radiator, tires, and other damaged parts (about 85-90% condition). |
| Tire Zone | Optional rims and tires for a little extra value. |
| Tuning shop | Next to Tire Zone, behind the suspension shop; ECU and gear tuning with import/export codes. |
| Paint shop | Repaint before selling for a large value boost. |
| Auctions | Premium/regular auctions for rare cars; Rick's quick buy pays under value. |
| Mr. Lupin's luxury dealership | Buys Tier 4 and Tier 5 cars at the best reported prices. |
| Garages | Starter, medium, and specialist garages; the spawn garage can be set in Settings. |
| Fast-food cleaning job | Low-pay mopping job for players who cannot afford a car. |
Sources: Avinestas (YouTube), Radex Tips (YouTube), Avinestas (YouTube), Avinestas (YouTube)
Main currency from car sales, driving, the Carl's Jr. job, speed traps and codes.
Driving around the map earns a small amount of Cash over time.
Repairs at Nando's raise condition to about 85-90%; paint pushes value higher.
Higher tiers are rarer; Tier 4-5 cars sell at Mr. Lupin's luxury dealership.
Open premium auctions, reported as the best odds for Tier 4-5 cars. Earned from codes, tasks and quests, or bought with Robux.
Adjust gearing and ECU at the tuning shop; tunes can be exported and imported as codes.
The VIP game pass is reported to give 10% more Cash from car sales and driving.
Paid refresh of every junkyard spot (Store items Junkyard 1-4); more spawns, same luck.
Tier quick list: Tier 1, Tier 2, Tier 3, Tier 4, Tier 5. Full breakdown on the tier list.
Sources: Avinestas (YouTube), Avinestas (YouTube), Avinestas (YouTube), Avinestas (YouTube)
| Page | What you will find |
|---|---|
| Locations and NPCs | Every shop, junkyard and named NPC, what each does, and a first-session route. |
| Glossary | Plain-English definitions for tiers, condition, rerolls, keys, Cars & Bids, ECU tunes and more. |
| Cars list | Reported cars by tier and where they come from. |
| Limited and exclusive cars | The two Robux limiteds, auction-only cars and fictional badge names. |
| Tier list | How the Tier 1–5 system works and how to get a Tier 5. |
| Codes | Working, mixed and expired codes with sources. |
| Update log | Every weekly update since August 2026. |
| FAQ | Twenty-five quick answers. |
Junk Mechanics has one main loop and several side systems that feed it. You buy a damaged car in a junkyard, raise its condition by repairing parts at Nando's and Tire Zone, polish and paint it at the customs shop, and sell it to a buyer. Juan buys anything; Mr. Lupin pays more but only for Tier 4 and 5; Rick buys instantly for less. The profit funds a better car, an extra garage, or performance parts from Car Zone.
Around that loop sit the luck-based systems: Cash auctions, premium auctions that need keys, junkyard rerolls, and since October 3, Cars & Bids, where players bid against each other. These can produce rare cars but are not reliable income; the game itself warns that auctions are not meant to be profitable. Performance systems (engines, turbos, superchargers, the tuning shop and wheel fitment) mostly matter for cars you keep rather than cars you flip.
Progress is measured by net worth, shown since September 5, which adds your Cash to the value of your cars. The higher junkyards added on September 20 display net worth figures on their signs, and their better rare-car odds are where most late-game money comes from.
| Fact | Value |
|---|---|
| Game page title | [UPD] Junk Mechanics |
| Publisher | Oil Leak (verified Roblox group) |
| Created on Roblox | March 12, 2026 |
| Platforms | Desktop, Mobile, Console |
| Server size | Up to 12 players |
| Genre | Simulation / Vehicle Sim |
| Content maturity | Minimal (suitable for everyone) |
| Visits | About 53.3 million |
| Next scheduled event | Halloween Update, October 10–13, 2026 |
These figures change daily; the Roblox game page is always the most current source.
Official Roblox facts, tracker-listed codes, and community gameplay videos are labelled separately so you can judge each claim.
Review source standardsWhere to sell rare cars and how to get a Tier 5 faster.
Open page →WalkthroughYour first buy, repair, paint and sell, step by step.
Open page →MoneyEvery money method compared.
Open page →GuidesRepair, selling, junkyards, auctions, tuning and more.
Open page →